Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第17卷    第3期    总第96期    2007年3月

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文章编号:1004-0609(2007)03-0476-05
微波场中不同配碳量钛精矿的吸波特性
黄孟阳1,彭金辉1,黄 铭2,张世敏1,李 雨1,雷 鹰1

(1. 昆明理工大学 材料与冶金工程学院,昆明 650093;
2. 云南大学 信息学院,昆明 650093
)

摘 要: 采用微波谐振腔微扰法测定了碳质还原剂和钛精矿混合物料的吸波特性,研究了碳质还原剂配入钛精矿不同例时混合物的吸波特性与材料的复介电常数(ε″)、微波场内热源强度p的关系。分析结果表明:当粒度为147~175 µm时,钛精矿的吸波特性优于椰壳碳、焦碳和无烟煤的;且通过比较复介电常数的大小确定了椰壳碳和钛精矿最佳配比为20%,焦碳和钛精矿最佳配比为14%,无烟煤和钛精矿最佳配比为5%;并在此配比条件下得到了ε″p的最大值。

 

关键字: 钛精矿;配碳量;碳质还原剂;吸波特性

Microwave-absorbing characteristics of mixtures about different
proportions of carbonaceous reducer and ilmenite in microwave field
HUANG Meng-yang1, PENG Jin-hui1, HUANG Ming2,
ZHANG Shi-min1, LI Yu1, LEI Ying1

1. Faculty of Materials and Metallurgical Engineering,Kunming University of Science and Technology,
Kunming 650093, China;
2. School of Information Science and Engineering, Yunan University,Kunming 650091, China

Abstract:The microwave-absorbing characteristics of the mixtures about carbonaceous reducer and ilmenite were measured by the technique of microwave cavity perturbation and the relationships between p and the microwave-absorbing characteristic of the mixtures were studied. The results indicate when the particles sizes of the mixtures are 147~175 µm, the microwave-absorbing characteristic of ilmenite is better than those of coconut carbon, coke and anthracite. And the optimal proportions of coconut carbon and ilmenite coke, ilmenite anthracite and ilmenite are defined as 20%, 14% and 5%, respectively. ε″ and p reach up to the maximums under the above conditions.

 

Key words: ilmenite; proportions of carbon; carbonaceous reducer; microwave-absorbing characteristic

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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